Title :
Design of an electrically small, circularly polarized planar cross dipole
Author :
Ludwig, Julian ; Cato, Cameron ; Sungkyun Lim
Author_Institution :
Dept. of Electr. Eng., Georgia Southern Univ., Statesboro, GA, USA
Abstract :
A circularly polarized, planar cross dipole antenna is presented with an electrical size, kr, of 0.65. Miniaturization of the antenna is achieved by employing top-loading on both ends of the crossed dipoles. Short stubs are implemented to boost the reduced radiation resistance. The antenna is printed on Rogers RT/Duroid 5880, having a dielectric constant, εr, of 2.2, and a thickness of 3.2 mm. The antenna operates at 912 MHz, where the maximum realized gain of the antenna is 1.37 dBic and the axial ratio is below 3 dB.
Keywords :
UHF antennas; dipole antennas; permittivity; planar antennas; Rogers RT/Duroid 5880; circularly polarized planar cross dipole; crossed dipoles; dielectric constant; electrically small planar cross dipole; frequency 912 MHz; planar cross dipole antenna; reduced radiation resistance; short stubs; size 3.2 mm; top loading; Dipole antennas; Feeds; Gain; Loading; Planar arrays; Resistance;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2014 IEEE
Conference_Location :
Memphis, TN
Print_ISBN :
978-1-4799-3538-3
DOI :
10.1109/APS.2014.6904475
